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HomeRepair HelpOven RepairGas stove burner not heating properly Repair
Gas stove burner not heating properly
When your gas stove burner is not heating properly, start with the control knob, the most likely cause. A cracked or stripped knob may turn without properly rotating the burner valve stem, so the flame does not change from low to high. If the knob is in good condition, inspect the surface burner valve. A loose or damaged valve stem may not open the gas flow correctly, causing a gas burner low flame or a gas stove weak flame. Next, turn off the gas stove and let the stovetop cool before checking the burner cap. If the cap is misplaced, warped, or damaged, it cannot distribute gas evenly, and the burner may not heat up uniformly. Also confirm that your cookware matches the burner size, since a pan that is too large or too small can affect cooking performance. These checks can help identify why your gas burner is not heating up. Enter your model number to find the exact replacement control knob, surface burner valve, or burner cap for your specific gas stove.
01 - Range/Stove/Oven Control Knob
If a burner flame is not changing as expected when the burner valve control knob is turned from low to high, it's possible the knob is stripped out or damaged and unable to rotate the valve stem. Inspect the knob for any cracks or wear and replace if necessary.
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02 - Range/Stove/Oven Surface Burner Valve
If a burner flame is not changing as expected when the surface burner valve control knob is turned from low to high, it's possible the burner valve stem is damaged and not actuating the valve appropriately. If the valve stem appears loose or wiggles you should replace the surface burner valve.
Less Common
03 - Burner cap not on correctly
Since burner caps help distribute the gas evenly around the burner, a burner cap that is not positioned correctly on the burner base can cause the burner not to heat properly. Confirm the appliance is turned off and the stovetop is cool to the touch, then readjust the burner cap, if necessary, so it is seated properly on the burner base. If the cap is damaged or warped, the flame can be higher on one side than the other. Inspect the burner cap for damage; a damaged burner cap will likely need to be replaced.
Less Common
04 - Incorrect cookware size being used
For best cooking performance use a burner that is best suited for the size of cookware being used. Using cookware that is too small or too large for the burner is not recommended.
Less Common
Frequently Asked Questions
Why is my gas stove burner not heating properly?
Why does my gas stove flame stay the same when I turn the knob?
How do I fix a gas stove burner with a weak or uneven flame?
How can I find the correct gas stove burner knob, burner cap, or surface burner valve?
Can I test a gas stove burner valve with a multimeter?
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